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简介：Selectivelasermelting(SLM)isoneofthemostpopularadditivemanufacturing(AM)technologiesformetalparts.Slicingresult,especiallyforthedifferentdimensionalslicinggeometryanditstopology,playsanimportantrolebecauseofthethermodynamicbehaviorofmetalpowders.Togetcorrectgeometryandreliabletopology,aslicingstrategyforSLMisproposed.Theunavoidablenumericalerrorcausedbysamplingandgeometrictransformationissuppressedfirstly,accordingtoshiftingthez-coordinateofavertexwithasmallvaluesuchtheshiftedvertexisonaslicingplane.Theresultofvertex-shiftingmakesitpossibletoidentifydifferentgeometricfeaturessuchasskinsurfaces,overhangsurfaces,extremeedgesandvolumetricsolid.Second,fromgeometricprimitivesahierarchyofaxis-alignedboundingboxes(AABBs)isconstructedandusedtospeedupintersectionofslicingplanesagainstsetsoftriangles.Allintersectingsegmentsaregivendifferentsignstodepicttheirgeometricortopologicalinformation.Basedthedifferentsigns,thedifferentdimensionalgeometrythatiseventuallyrepresentedbysimpleandanticlockwiseorientedpolygons,areidentified.Finally,thepolygonsareclassifiedandnestedinamulti-treedatastructuresettoproducecorrecttopologicalrelations.Theresultofdigitalandphysicalexperimentsshowstheproposedslicingstrategyisfeasibleandrobust.

简介：Twosystemoptimizationarchitecturesareproposedformissilesystempreliminarydesign,takingintoaccountaerodynamics,weightsandsizing,propulsionandtrajectory.Approximationmethodsareinvestigatedinordertoreduceproblemdimensionalityandtoimprovetheefficiencyofoptimizationprocess.

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简介：在没有规模的网络上称为随机的散步免疫策略的新奇免疫策略被建议。与另外的已知的免疫策略不同，这策略如下工作：一个节点随机从网络被选择。从这个节点开始，随机去它的邻居节点之一；如果现在的节点没被使免疫，那么使它免疫并且继续随机的散步；否则回到以前的节点并且随机再走。这个过程被重复直到节点的某个部分被使免疫。由理论分析和数字模拟，我们发现这策略与另外的已知的免疫策略比较是很有效的。

简介：Thispaperpresentsasymmetriccooperationstrategyforwirelesssensornetworks,aimingtoimprovethetransmissionefficiencyofthenetwork.Thecooperationstrategyisimplementedbypartitioningthenodesintoseveralcooperativegroups.Then,ineachgroup,theoptimalcooperativebandwidthallocationisobtainedbasedonRaiffa-KalaiSmorodinskybargainingsolution(RBS).Numericalresultsshowthatthesymmetriccooperationstrategycanimprovethesensornode'stransmissionefficiencydramatically.

简介：Resourcessharedine-Sciencehavecriticalrequirementsonsecurity.Thussubjectivetrustmanagementisessentialtoguaranteeusers'collaborationsandcommunicationsonsuchapromisinginfrastructure.Asanimportantnatureofsubjectivetrust,uncertaintyshouldbepreservedandexhibitedintrustdefinition,representationandevolution.Considerthedrawbacksofexistingmechanismsbasedonrandommathematicsandfuzzytheory,thispaperdesignsanuncertaintyenhancedtrustevolutionstrategybasedoncloudmodeltheory.Wedefinesubjectivetrustastrustcloud.Thenweproposenewalgorithmstopropagate,aggregateandupdatetrust.Furthermore,basedontheconceptofsimilarcloud,amethodtoassesstrustlevelisputforward.Thesimulationresultsshowtheeffiectiveness,rationalityandefficiencyofourproposedstrategy.

简介：ACAD-basedinspectionplanningstrategyforvideomeasuringinstrumentisproposedtoimprovemanufacturingeffectiveness.ThesystemconsistsofavideoprobethatenablesitselftoinspectaworkpiecebasedonaCADmodel.ThemeasurementsoftwareincludesCAIPmoduleandMDPmodule.TheCAIPmoduleisdevelopedbasedonaCADdevelopmentplatformwhosekernelistheOpenCASCADE.Theentiresystemwastested,andrelevantexamplesshowthatthesystemcanaccomplishautomaticinspectionplanningtaskforcommonpartsefficiently.

简介：Mobileplatformdevelopsrapidlyinrecentyears,withitsperformanceandcapacityincreasing.Alargenumberofvirtualrealityapplicationssuchas3Dsimulationandvisualizationhaveappearedonmobileplatform.However,duetorestrictions,suchasthelackofcomputingresourcesandthelimitednetworkbandwidth,thevirtualrealitysystemsonmobileplatformcouldnothavecomparableperformanceastheirpeersondesktopplatform.Takingresourcerestrictionsintoconsideration,trade-offshavebeenmaderegardingthedisplayofvirtualrealitysystems.Weproposeaunifiednetworkschedulingstrategybasedonasynchronousmulti-thread,databasecache,prioritizationandeliminationofoverduerequests.ThisstrategyhasbeentestedontheprototypesystemofvirtualrealitysystemonAndroid.Theresultsdemonstratehighernetworkresourceutilizationandbetteruserexperience.

简介：Dynamicloadbalancingschemesaresignificantforefficientlyexecutingnonuniformproblemsinhighlyparallelmulticomputersystems.Theobjectiveistominimizethetotalexectuiontimeofsingleapplications.ThispaperhasproposedanARIDstrategyfordistributeddynamicloadbalancing.Itsprincipleandcontrolprotocolaredescribed,andtecommunicationoverhead,theeffectonsystemstabilityandtheperformanceefficiencyareanalyzed.Finally,simulationexperimentsarecarriedouttocomparetheadaptivestrategywithotherdynamicloadbalancingschemes.

简介：Anovelrepetitivecontrolstrategyfortheoutputwaveformofsingle-phaseCVCFinvertersispresented.Inthisscheme,theinversetransferfunctionofinverterisusedasacompensatortoobtainstableandsatisfyharmonicrejection.Besides,PDcontrollerisadoptedtoimprovetransientperformance.Simulationandexperimentalresults,whicharegottenfromaDSP-based400Hz,5.5KWinverter,indicatethattheproposedcontrolschemecanachievenotonlylowTHDduringsteady-stateoperationbutalsofasttransientresponseduringloadstepchange.

简介：这份报纸为高速度的电的火车调查最小精力的开车问题，然后建议三阶段的最佳的策略。首先，一个切换的系统模型被介绍在高速度的电的火车描述新动力学，它考虑速度，精力效率和再生刹车的扩大范围。基于新模型，有最小精力的消费的最佳的开车策略被学习，并且这个问题被归结到为交换系统的最佳的控制。用一个数字算法，三阶段的开车策略被结束，在哪个传统的伪海岸阶段再被丢弃，最大的拖拉和刹车不是合适的。最后，CRH上的案例研究被说明。

简介：在一种紧急情况状况期间改进survivability，为飞机的一个算法强迫了登陆轨道计划被建议。方法集成计划进一个最佳的控制框架的损坏飞机建模和轨道。以便处理复杂飞机飞行动力学，解决的策略基于高斯pseudospetral方法(GPM)被介绍。A3-DOF考虑风的非线性的集体点的模型被开发接近在损失以后的飞机飞行动力学推进。答案最小化强迫的登陆持续时间，关于翻译改变的动力学，飞行信封限制和运作的安全要求的限制。GPM被用来变换计划问题到一个非线性的编程问题(NLP)的轨道，它被顺序的二次的编程算法解决。模拟结果证明建议算法能在事件产生最小时间的强迫的登陆轨道发动机外面与高效率和精确。

简介：没有已知的州的方程，新州的评价策略被设计对为电子的恶意的攻击是物理系统。由数据重建的想法启发了，(CS)压缩察觉到基于系统状态的Markov图在察觉和鉴定计划以后被用于剩余大小的重建，它对欺骗攻击增加州的评价策略的跳回。首先，observability分析被介绍从攻击决定测量重建和损坏水平的被触发的时间。特别地，学习的字典被建议由K单个的值分解(K-SVD)形成过去完成的字典，它根据测量数据的特征适应地被生产。由于剩余大小的不规则，另外，一个采样矩阵作为测量矩阵被设计。最后，模拟实验在6公共汽车力量系统上被执行。大小的重建被建议重建方法完成很好的结果表演，和相应效果分别地基于联合字典和传统的高斯或Bernoulli随机的矩阵比重建计划好。特别，当仅仅29%可得到的干净大小是左的时，建议策略的性能仍然是非凡的，它为五种恢复算法反映概论。

简介：Repetitioussimulationaftermodifyingparametersofmulti-domainphysicalsystembasedonModelicaoftenappearsinmodelexperimentandoptimizationdesign.Atpresent,thesolversbasedonModelicaneedcalculateallthecoupledblocksduringeverysimulationrunafterupdatingparameters.Basedondiscussingscaledecompositionmethodsofsimulationmodel,subdivisionsolvingstrategyandminimumsolvingstrategyareputforwardtoimprovetheefficiencyofrepetitioussimulation,bywhichthenumericalsolutionofthesimulationmodelcanbeachievedbyonlycalculatingthesolvingsequenceinfluencedbyalteredparameters.Asimplifiedmodelofaircraftisusedtodemonstratetheefficiencyofthestrategiespresented.

简介：据StrategyAnalytics发布最新研究报告”挡风玻璃摄像装置为交通标志识别系统（TSR）带来增长潜力”；分析认为．安装在车辆偏离预警系统（LDWS）中的前挡风玻璃摄像装置的增长将带动交通标志识别（TSR）系统的增长。